+++ /dev/null
-/*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifndef _LTT_TRACE_UST_H
-#define _LTT_TRACE_UST_H
-
-#include <config.h>
-#include <limits.h>
-#include <urcu/list.h>
-
-#include <lttng/lttng.h>
-#include <common/hashtable/hashtable.h>
-#include <common/defaults.h>
-
-#include "consumer.h"
-#include "ust-ctl.h"
-
-struct ltt_ust_ht_key {
- const char *name;
- const struct lttng_filter_bytecode *filter;
- enum lttng_ust_loglevel_type loglevel;
-};
-
-/* Context hash table nodes */
-struct ltt_ust_context {
- struct lttng_ust_context ctx;
- struct lttng_ht_node_ulong node;
-};
-
-/* UST event */
-struct ltt_ust_event {
- unsigned int enabled;
- struct lttng_ust_event attr;
- struct lttng_ht_node_str node;
- struct lttng_ust_filter_bytecode *filter;
-};
-
-/* UST channel */
-struct ltt_ust_channel {
- unsigned int enabled;
- char name[LTTNG_UST_SYM_NAME_LEN];
- char pathname[PATH_MAX];
- struct lttng_ust_channel attr;
- struct lttng_ht *ctx;
- struct lttng_ht *events;
- struct lttng_ht_node_str node;
-};
-
-/* UST Metadata */
-struct ltt_ust_metadata {
- int handle;
- struct lttng_ust_object_data *obj;
- char pathname[PATH_MAX]; /* Trace file path name */
- struct lttng_ust_channel attr;
- struct lttng_ust_object_data *stream_obj;
-};
-
-/* UST domain global (LTTNG_DOMAIN_UST) */
-struct ltt_ust_domain_global {
- struct lttng_ht *channels;
-};
-
-/* UST domain pid (LTTNG_DOMAIN_UST_PID) */
-struct ltt_ust_domain_pid {
- pid_t pid;
- struct lttng_ht *channels;
- struct lttng_ht_node_ulong node;
-};
-
-/* UST domain exec name (LTTNG_DOMAIN_UST_EXEC_NAME) */
-struct ltt_ust_domain_exec {
- char exec_name[LTTNG_UST_SYM_NAME_LEN];
- struct lttng_ht *channels;
- struct lttng_ht_node_str node;
-};
-
-/* UST session */
-struct ltt_ust_session {
- int id; /* Unique identifier of session */
- int start_trace;
- char pathname[PATH_MAX];
- struct ltt_ust_domain_global domain_global;
- /*
- * Those two hash tables contains data for a specific UST domain and each
- * contains a HT of channels. See ltt_ust_domain_exec and
- * ltt_ust_domain_pid data structures.
- */
- struct lttng_ht *domain_pid;
- struct lttng_ht *domain_exec;
- /* UID/GID of the user owning the session */
- uid_t uid;
- gid_t gid;
- /*
- * Two consumer_output object are needed where one is for the current
- * output object and the second one is the temporary object used to store
- * URI being set by the lttng_set_consumer_uri call. Once
- * lttng_enable_consumer is called, the two pointers are swapped.
- */
- struct consumer_output *consumer;
- struct consumer_output *tmp_consumer;
- /* Sequence number for filters so the tracer knows the ordering. */
- uint64_t filter_seq_num;
-};
-
-#ifdef HAVE_LIBLTTNG_UST_CTL
-
-int trace_ust_ht_match_event(struct cds_lfht_node *node, const void *_key);
-int trace_ust_ht_match_event_by_name(struct cds_lfht_node *node,
- const void *_key);
-
-/*
- * Lookup functions. NULL is returned if not found.
- */
-struct ltt_ust_event *trace_ust_find_event(struct lttng_ht *ht,
- char *name, struct lttng_filter_bytecode *filter, int loglevel);
-struct ltt_ust_channel *trace_ust_find_channel_by_name(struct lttng_ht *ht,
- char *name);
-
-/*
- * Create functions malloc() the data structure.
- */
-struct ltt_ust_session *trace_ust_create_session(char *path,
- unsigned int session_id, struct lttng_domain *domain);
-struct ltt_ust_channel *trace_ust_create_channel(struct lttng_channel *attr,
- char *path);
-struct ltt_ust_event *trace_ust_create_event(struct lttng_event *ev,
- struct lttng_filter_bytecode *filter);
-struct ltt_ust_metadata *trace_ust_create_metadata(char *path);
-struct ltt_ust_context *trace_ust_create_context(
- struct lttng_event_context *ctx);
-
-/*
- * Destroy functions free() the data structure and remove from linked list if
- * it's applies.
- */
-void trace_ust_destroy_session(struct ltt_ust_session *session);
-void trace_ust_destroy_metadata(struct ltt_ust_metadata *metadata);
-void trace_ust_destroy_channel(struct ltt_ust_channel *channel);
-void trace_ust_destroy_event(struct ltt_ust_event *event);
-
-#else /* HAVE_LIBLTTNG_UST_CTL */
-
-static inline int trace_ust_ht_match_event(struct cds_lfht_node *node,
- const void *_key)
-{
- return 0;
-}
-static inline int trace_ust_ht_match_event_by_name(struct cds_lfht_node *node,
- const void *_key)
-{
- return 0;
-}
-static inline
-struct ltt_ust_channel *trace_ust_find_channel_by_name(struct lttng_ht *ht,
- char *name)
-{
- return NULL;
-}
-
-static inline
-struct ltt_ust_session *trace_ust_create_session(char *path, pid_t pid,
- struct lttng_domain *domain)
-{
- return NULL;
-}
-static inline
-struct ltt_ust_channel *trace_ust_create_channel(struct lttng_channel *attr,
- char *path)
-{
- return NULL;
-}
-static inline
-struct ltt_ust_event *trace_ust_create_event(struct lttng_event *ev,
- struct lttng_filter_bytecode *filter)
-{
- return NULL;
-}
-static inline
-struct ltt_ust_metadata *trace_ust_create_metadata(char *path)
-{
- return NULL;
-}
-
-static inline
-void trace_ust_destroy_session(struct ltt_ust_session *session)
-{
-}
-
-static inline
-void trace_ust_destroy_metadata(struct ltt_ust_metadata *metadata)
-{
-}
-
-static inline
-void trace_ust_destroy_channel(struct ltt_ust_channel *channel)
-{
-}
-
-static inline
-void trace_ust_destroy_event(struct ltt_ust_event *event)
-{
-}
-static inline
-struct ltt_ust_context *trace_ust_create_context(
- struct lttng_event_context *ctx)
-{
- return NULL;
-}
-static inline struct ltt_ust_event *trace_ust_find_event(struct lttng_ht *ht,
- char *name, struct lttng_filter_bytecode *filter, int loglevel)
-{
- return NULL;
-}
-
-#endif /* HAVE_LIBLTTNG_UST_CTL */
-
-#endif /* _LTT_TRACE_UST_H */
projects / lttng-tools.git / blobdiff